Jefferson Weather Forecast

    • 55
    • 78

    Chance Rain Showers

    • 50
    • 74

    Rain Showers Likely

    • 51
    • 77

    Slight Chance Thunderstorms

    • 56
    • 81

    Slight Chance Thunderstorms

    • 55
    • 84

    Slight Chance Thunderstorms

    • 53
    • 79

    Slight Chance Rain Showers

Today 14 May Union

Sunny. Highs in the upper 70s. East Winds 5 to 10 Mph.

Tonight 14 May Union

Mostly clear this Evening, then mostly cloudy with a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 50s. Southeast Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jefferson Temperature Statistics

May Temperature

Sioux City, Sioux Gateway Airport (16.2 miles)

  • Lowest 5 May, 2024

    37.7 °F

  • Average May

    58.3 °F

  • Highest 11 May, 2024

    81.6 °F

Climate (2019–Present)

Sioux City, Sioux Gateway Airport (16.2 miles)

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  • Average Low 2019–2024

    39 °F

  • Average 2019–2024

    50.1 °F

  • Average High 2019–2024

    61.6 °F
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